After the firmware is successfully applied to your computer, your BootROM Version will be one of the following: UEFI requires the firmware and operating system loader (or kernel) to be size-matched for example, a 64-bit UEFI firmware. Tip: If the look of rEFInd leaves a bad taste in your mouth, you can download custom themes to make it better reflect the default Apple design. If you don't make a selection, OS X will automatically boot after a 20 second wait time.
Use the arrows to choose the Boot EFI\boot\grub圆4.efi to boot Ubuntu from the LiveUSB.What’s an EFI password? Also known as an open firmware password on older Macs, it’s a low-level password that prevents access to your Mac’s troubleshooting routines, like Recovery partitions or.
